Improvement in manufacture op glass-ware



Qa tant @atmt i @film l g www' Letters Patent No. 83,210, dated Octoberl 20, 1868 EEPROV'EIVIENT IN MANY'UFACTURE CI' GLASS-WARE.

The Schedule referred to in these'Letters Patent and making part of the same.

To all whom ytana/y concer-ny Be it known that I, DANIEL C. RIPLEY, of Birmingham, inthe county of Allegheny, and State of Pennsylvania, have invented a new and useful Improvement in Manufacture o f Glass-Ware; and I do hereby'def clare the following to bea t'ull, clear, and exact descripd tion thereof, reference being had tothe accompanying drawing, making apart of this specication, in which- Figure l is a perspective view, showing-the inner face of a jointed or two-part glass-mould, illustrative of my improvement Y Figure 2 is a face view of one of the'halves of such a mould, with the collar and plunger shown in section; and

Figure 3 is a perspective view of the articles as made in the mould shown.

Like letters of reference indicate like parts in each.

In the manufacture of glass Stoppers, and other small articles of pressed glass-ware, a mould has been used in which a number of such articles could be pressed at once, the cavity or mould for each article being connected by sprues with a pressing-ibimt, into'which the melted glass is dropped or poru'ed, and from which it is pressed by a plunger.

As more glass must necessarily be used than is required for the articles to be manuiactured,'a quantity is left in the pressing-haunt, which, to the extent of the cost of its manufacture is almost a total loss. My invention utilizes this waste, by so making the mould that the pressing-fount shall itself be the cavity or mould in which to` press articles of value, and shall be 4connected by sprues with other cavities, one or more,

for forming the same, or other articles of glass-ware; and therein consists the nature of my invention.

To enable others skilled in the art tomake and use my invention, I will proceed to describe its construction and mode of operation.

A A are the two halves of a jointed or' two-part glass-mould, jointed in the usual way, and, when closed, locked by a pin passing through the lugs a, a. In the upper part of this mould', I make a pressing-fonnt, b b', oi' the shape oi' a lamp-foot, or some other useful or ornamental article of pressed glass-ware, and connect such pressing-munt or cavity, by sprues c, with one or. more other cavities, d e, which are of the proper form for moulding the same orl other articles of pressed glass-ware,...

In the drawing, b b is a cavity of the proper form for moulding the foot of a lamp; e is the cavity for a lamp-handle; g and d, a cavity for a glass stopper, h.

The sprues cvmay connect at each end-with those parts of the moulds in which are cast the unfinished faces of the articles to be made, or otherwise, as may be preferred.

The mould A A being closed, a shouldered collar, B, is placed in its upper open vend. The annular part, t', of this collar projects out ove the upper end of the mould A A. The tubular part, o, has a small amount of vertical play in theccylindrical cavity o', so that by jmliug more or less displaced, room will be provided beath it, and inside the cavity b b', for a slight excess l in the amount of glass over and above what is required for a lamp-foot, f, or other article to be made therein.

The workman then gathers, on his punty-rod, the amount of glass required, as near as may be, to make all the articles, f g h, which Athe mouldA A is designed to make, drops flic glass into the cavity b b', and immediately applies to it the plunger C, attached to a suitable pressing-device, which descends through the collar B, thev exterior diameter of the plunger C being the same as the interior diameter of the collar B, and the lower face, m., of the plunger G being of the form which it is desirable to give to the under and inner face of the lamp-foot f. The melted glass runs readily through the sprues cinto the cavities d e, and pressure applied to the plunger C forces the surplus of glass into the shape of a lamp-foot,vas shown in tig. 2. The mould A A- is opened as soon as the glass is set, and the articles f g h removed. These are broken apart immediately, or L fterwards, as may be preferred. A globe can be blown on to the lamp-foot f, the handle, g, at tached to it, or to any article requiring a handle, and the stopper It is appropriated to the use designed.

In the construction ofthe compound mould described,l

I do not limit myself to any pa icular number or kind or variety of cavities, b c d, but Vapply my invention to the construction of moulds combin` 1g two or more cavities for making the same or di'erent articles, one such cavity being the pressing-fount.

i Nor do I limit myself in theshape of the cavity b b', which constitutes the pressing-fount, but I make such cavity of the shape of either face of part of an article of glass-ware which is made, or ,which can conveniently be made by pressing, the lower end of the plunger C being so shaped as to form the other face. The other articles made may be connected with any convenient part of the article produced in such pressing-formt;

and, if with some part which should be finished, such finishing may be done after the articles are. broken apart, by grinding or otherwise.

Instead of a double mould, A A', a triple or quadruple mould may be employed, if preferred.

In' this way I make a number of articles with the labor required to make each one separatelyand utilize the glass commonly Wasted in the pressing-fount; and, as the cost of preparing the glass for melting amounts to about tty per cent. of the value ofthe manufactm'ed article, the saving in a large manufactory will amunt to a large sum.

What I claim as my invention, and desire to secure by Letters Patent, is

The construction of a compound mould for making articles of pressed glass-ware, substantially as described, in which the pressing-fomit shall itself be a mould, and shall at the same time be connected by a sprue or sprues with another mould, or with other moulds, for forming the same or other articles of glass-ware.

In testimony whereof, I, the said DANIEL C. BIP- LEY, have hereunto set my hand.

Witnesses: DANUL C. RIPLEY.

A. S. NlHoLsoN, 

